Extending the diabetic retinopathy screening interval beyond 1 year: systematic review
Sian Taylor-Phillips, Hema Mistry, Rachael Leslie, Dan Todkill, Alexander Tsertsvadze, Martin Connock, Aileen Clarke
British Journal of Ophthalmology Jan 2016, 100 (1) 105-114; DOI: 10.1136/bjophthalmol-2014-305938